Rapid Titration of Methadone for Opioid Use Disorder in the Emergency Department: A Case Report

The prevalence of high-potency synthetic opioids (HPSO), such as fentanyl and its analogs, presents significant treatment challenges to current strategies for emergency department (ED) initiation of medication for opioid use disorder (MOUD). While most EDs traditionally use buprenorphine for MOUD, its effectiveness can be limited in patients exposed to HPSOs due to risk of precipitated withdrawal or inadequate control of withdrawal symptoms. Methadone, a full agonist, is another MOUD agent that addresses severe withdrawal symptoms and cravings associated with HPSO dependence and will not cause precipitated withdrawal. Traditional methadone protocols often fail to provide sufficient doses to alleviate withdrawal symptoms, but new federal guidelines allow higher initial doses and rapid titration to therapeutic levels.

We report a case of rapid methadone titration in the ED for a patient with a history of high HPSO utilization. The patient received an initial dose of methadone 50 milligrams (mg) orally, followed by titration of additional 10 mg doses hourly to a cumulative dose of 70 mg at discharge. Vital signs, mental status, and Clinical Opiate Withdrawal Scale scores were monitored to guide dosing.

The protocol allowed for safe, individualized care, achieving therapeutic dosing levels that alleviated withdrawal symptoms and enabled the patient to transition to outpatient follow-up treatment. This approach addresses the need for rapid, effective methadone initiation in an era in which high-potency synthetic opioids pose challenges to traditional opioid use disorder treatment.